My company operated a LJ60 for a while, and the pilots / engineers told me a few things about it, such as:
- fairly useless brakes, especially on contaminated runways (even though this one had the brake mod). Book figures apparently impossible to achieve
- really doesn't like cold temperatures - less than minus 15 is a problem. Things freeze and break either at the time, or a few days later
- taxiing can be interesting due to lack of nosewheel steering, especially when wet / icy
- thrust reversers are a bit delicate and need to be operated carefully
Otherwise, it's a solid machine and pretty reliable. However it has the same wing as the Lear 25, which weighs nearly 10000lbs less, which equals high takeoff and landing speeds, and coupled with crap brakes, that means that it can't go to many places other smallish bizjets go to e.g. Lugano, London City, Cannes, etc. because it needs loads of runway. We worked with a rough rule of thumb: less than 6500ft, check with the crew (it was on an AOC).
We did get it into Biggin Hill though.